If 1 mile = 1.609 km then we can use it as the conversion factor in the following way, remembering that the equation has to be set so that the miles cancel with miles.
4.5 miles =

⇒ 7.2405 km
Answer:
Step-by-step explanation:
Our equation will be 3x+8=20.6
3x=12.6
x=4.2
Answer:
$22.50
Step-by-step explanation:
Find 25% of 30 and then take away that amount from 30.
Answer:
$9,216 in account $1,261 interest.
Step-by-step explanation:
The compound interest is given by:

P = Principal
r = rate
n = Number of times interest is compounded per unit t
t = time
so:

therefore, the answer is:
$9,216 in account $1,261 interest